There's far more such uploads to YouTube than ever offered here. One which is well over-the-top on YT is a 3-hour upload of the Oldham Tinkers' recordings from their albums.
And what about the parallel thread of folks here trying to download copies of LPs from the World Library of Folk/Primitive Music?
The recordings offered in this thread are those that have been lost to the nation, enthusiasts and performers alike becaue they have been locked away in dusty archives never to be heard again, or worse been deliberatley wiped.
Indeed recordings of varying quality of long-wiped programmes have been offered back to such as the BBC and been refused. The BBC is only interested in recovered commercially valuable recordings such as Dr. Who or Dad's Army. It has been reported that the Beeb was not interested in recooveed 'lost' Clitheroe Kid episodes.
And the Beeb is certainly not interested in recovered recordings of anything 'folk.' We have 100s of Folkweaves, and other folk programmes - the Beeb never even had the courtesy to respond to our offer of those. This has been othes' exepiences too. Indeed even folk programmes aired today are never kept except those off-air captures by folk enthusiasts.
It might also be recalled that a few years' ago the multi-million pound project by the Beeb to put all of its archives online was abandoned at great expense and waste of licence fee payers hard earned.
As far as OTR enthusiasts selling recordings whilst there are home-made CDs on eBay, the general unwritten rule is that recordings should be freely shared and never sold or traded.